Manifold-cover



H. T. MELLING.

MANIFOLD COVER. v

APPLICATION men 020.30. mat

1,389,961 PatentedSept. 6, 1921.

- 'lnve nfar UNITED STATES PATENT OFFICE.

HERBERT TOM MEI-LING, OI REGINA, SASKATCHEWAN, CANADA.

MANIFOLD-COVER.

Specification of Letters Patent.

Patented Sept. 6, 19 21.

Application filed December 80, 1918. Serial No. 268,808.

' and Ireland, residing at Regina, Province of Saskatchewan, Dominion ofCanada, have invented certain Improvements in' Manifold- Covers, ofwhich the following is a specification.

This invention relates to improvements in u internal combustion enginesand particularl to providing means to heat the intake manifold, andconsists in an adjustable cover for the manifolds of automobile engines.

its object is to provide a casing by means of which the heat of theexhaust manifold may be transmitted to the intake manifold, withoutinterfering with the flow of gases through. either manifold.

1 am aware that numerous'forms of manifolds cast in one piece are knownand used. By means of this invention it is not necessary to replace themanifolds provided with the engine, as this cover produces the result incheaper and more convenient form when adjusted to such manifolds.

it is especially adapted to the well known Ford engine but can beequally well adapted to any engine in which the two manifolds are on thesame side of the engine.

The heating of the intake manifold is well known as a means of improvingthe quality of mixture of gas and air which is fed to the cylinders ofthe engine, and also ameans of preventing condensation in the intakemanifold.

Reference is made to the following drawings in which Figure 1. shows theinside half of the inner cover with the position, of the manifolds drawnin dotted line.

Fig. 2. shows the cover in position.

Fig. 3. is a vertical section on the line 33 of Fig. 2.

Fig. l. is a horizontal section on the line H of Fig. 2.

The construction of this invention is briefly, a close fitting casing ofthin metallic sheeting in contact with the outer portions of themanifolds and over this a. cover of non-conducting material. The spacesbetween the manifolds within the casing may be filled with conductingmaterial 81 in loose form such as iron filings.

In order to make the inner cover readily adjustable, I have divided itinto two portions of which the edges overlap when in posltion.

The outer cover is preferably in one piece, when practicable.

In the form shown in the annexed draw- I ings, 1 represents the face ofthe cylinder casting to which the manifolds are attached, with the studs4 and ll projecting therefrom. K

lhe inside half 7 of the inner cover is shown in Fig. 1. This isperforated with holes through which the studs t and ll and the junctionends of the manifolds 2 and 3 pass. Washers 10 of suitable size areplaced over the studs 4 to hold the cover portion 7 in close contactwith the manifolds 2 and 3 when adjusted. The outer half 8 isperforated, with holes for the studs l and 4.1. Both halves are cut awayto provide for the intake pipe 31 and the outlet pipe 21. The ends ofthe stirrups 5 press the outer half 8 of the inner cover down on themanifolds 2 and 8.

The outer cover 9 preferably consists of an insulated casing 91 ofasbestos or similar con-conducting material and an outer casing 92 ofsheet metal or other protective material.

T he edge of the cover 9 is adapted to fit neatly on the surface 1 asshown in Figs. 3 and 4-. lhe cover 9 may be secured to the manifolds bythe two end studs l1 b the nuts 61 which hold the stirrups 51 as s ownin Fig. 4:. All the stirrups are thereby inclosed within the cover 9.Other means of securing the outer cover in position may be adopted inapplying my invention.

By means of this improvement the heat from the exhaust manifold istransmitted to the intake manifold and the mixture passing into thecylinders is prevented from condensing on the walls of the manifold andis heated before compression. By means of the ready adjustability theinvention may be rapidly installed or removed if conditions require suchalteration.

What I claim is 1. The combination, with an exhaust manifold and anintake manifold, of a cover therefor comprising an inner casing and anouter casing each consisting of a cup shaped metallic sheet portion,stirrups resting on the outer casing, stirrup pins passing through thestirrups and the inner and outer casin and securing the casings to themanifol s,

heat 'gconducting material between the two casings, and an outerremovable insulating portion having means for securing the same to themanifold. I

2. The combination with an exhaust manifold and an intake manifold, of acover therefor comprising an inner casing and an outer casing eachconsisting of a cup-shaped metallic sheet portion, stirrups resting onthe outer casing, stirrup pins passing through the stirrup's and theinner and outer casings and securing the casings to the manifolds and anouter removable insulating portion having means for securing the same tothe manifold.

3. The combination with an exhaust manifold and an intake manifold, of acover therefor comprising an inner casingand. an

outer casing each consisting of a cup-shaped metallic sheet portion,stirrups resting on the outer casing, stirrup pins passing through thestirrups, the outer and inner casings and washers resting on thecylinder casting, and securing the casings to the manifolds.

In testimon whereof I aflix m signature.

H RBERT TOM M LLING.

